#3153AB#3153AB

#3153AB is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.7% C 0.147 H 265.2°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3153AB
RGB	rgb(49, 83, 171)
HSL	hsl(223, 55%, 43%)
HSV	hsv(223, 71%, 67%)
CMYK	cmyk(71.3%, 51.5%, 0%, 32.9%)
CIE-LAB	lab(37.44, 18.43, -50.85)
CIE-LCH	lch(37.44, 54.08, 289.92°)
OKLab	oklab(46.73% -0.0122 -0.1461)
OKLCH	oklch(46.73% 0.147 265.2)
XYZ	xyz(11.7080, 9.7785, 39.7906)
Luminance	0.0978 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3153AB #AB8931

analogous

#3190AB #3153AB #4C31AB

triadic

#3153AB #AB3153 #53AB31

tetradic

#3153AB #AB3190 #AB8931 #31AB4C

square

#3153AB #AB3190 #AB8931 #31AB4C

split-complementary

#3153AB #AB4C31 #90AB31

monochromatic

#16254C #233C7B #3153AB #4D71CC #7D97DA

Accessibility & contrast

On white

7.10

#3153AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3153AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3153AB

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3153AB	#FFFFFF	#000000	##FFFFFF
##3153AB	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5EAE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3153ab;
/* rgb */ color: rgb(49, 83, 171);
/* oklch */ color: oklch(46.7% 0.147 265.2);

Tailwind

colors: {
  custom: {
    50: '#7982c5',
    500: '#3153ab',
    950: '#000000',
  },
}

SCSS

$custom: #3153ab;
$custom-light: #7982c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3153ab",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 171
  },
  "hsl": {
    "h": 223.279,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46725,
    "c": 0.14661,
    "h": 265.2
  },
  "luminance": 0.0978
}

Semantic roles & 50–950 ramp

primary

#3153AB

secondary

#C2AD75

accent

#B549DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3153AB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →